Finding the Fourth Proportional to 10,331.76, 14,257.52 and 5,615.92

Step by Step Solution

1. Step 1: Write the proportion equation
   10,331.76 : 14,257.52 = 5,615.92 : x
2. Step 2: Convert to fraction form
   10,331.76/14,257.52 = 5,615.92/x
3. Step 3: Cross multiply
   10,331.76x = 14,257.52 × 5,615.92
4. Step 4: Simplify right side
   10,331.76x = 80,069,091.72
5. Step 5: Solve for x
   x = 80,069,091.72/10,331.76
6. Step 6: Final answer
   x = 7,749.80